Tetra Tech Inc. is part of a group of companies that has secured a U.S. Air Force contract with a potential value of $950 million, the company said Monday.

Under the five-year contract, the Pasadena engineering firm will support the Air Force’s construction program. The military branch is seeking to modernize its infrastructure with potable water supplies, utility systems and transportation networks around the world.

Tetra Tech will collect and analyze geospatial data, develop and help with master planning, conduct field surveys and design facilities with green building elements when possible.

The contract has an option to be extended another two years after the five-year term.